function changeVip(vip,expire){
	var vipVal,expireVal,strVal,storeName;
	vipVal = vip.value;
	expireVal = expire.value;
	strVal = vipVal+','+expireVal;
	//storeName = vip.options[vip.selectedIndex].text;
	Ajax('','getVipCharge.php?strVal='+encodeURIComponent(strVal),function(str){setVipVal(str);});
}

function setVipVal(strVal){
	var strArr;
	strArr = eval(strVal.split(','));
	$('vip_cost').innerHTML = strArr[0];
	$$('price').item(0).value = strArr[0];
}